{
 "ocl_version": "0.1.0",
 "name": "Chemin des Bonnettes",
 "slug": "chemin-des-bonnettes",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.963613621467175,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 191.0,
   "end_distance_m": 193.0,
   "start_elevation_m": 550.2602732473968,
   "end_elevation_m": 550.7995455198261,
   "min_gradient_pct": -5.225575363635926
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.90151792474838,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 190.0,
   "end_distance_m": 193.0,
   "start_elevation_m": 550.0524999820836,
   "end_elevation_m": 550.7995455198261,
   "min_gradient_pct": -4.8723151499151145
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.09847556191835,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 188.0,
   "end_distance_m": 193.0,
   "start_elevation_m": 549.5946217417302,
   "end_elevation_m": 550.7995455198261,
   "min_gradient_pct": -4.109586403924368
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.332609640524197,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 183.0,
   "end_distance_m": 193.0,
   "start_elevation_m": 548.5662845557737,
   "end_elevation_m": 550.7995455198261,
   "min_gradient_pct": -3.587559633916726
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.827415822569947,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 88.0,
   "end_distance_m": 108.0,
   "start_elevation_m": 528.427444494049,
   "end_elevation_m": 532.792927658563,
   "min_gradient_pct": -3.2945018886113075
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.689683827612498,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 168.0,
   "end_distance_m": 193.0,
   "start_elevation_m": 545.377124562923,
   "end_elevation_m": 550.7995455198261,
   "min_gradient_pct": -3.2028442625069147
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.460129570039044,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 143.0,
   "end_distance_m": 193.0,
   "start_elevation_m": 540.0694807348066,
   "end_elevation_m": 550.7995455198261,
   "min_gradient_pct": -1.7035976532524728
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 21.241036765245212,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 93.0,
   "end_distance_m": 193.0,
   "start_elevation_m": 529.5585087545809,
   "end_elevation_m": 550.7995455198261,
   "min_gradient_pct": 6.53690142417463
  }
 ],
 "shape": {
  "ascent_concentration": 0.473,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 166.0,
  "shape_class": "stepped"
 },
 "length_m": 383.5003595606593,
 "start_elevation_m": 524.1435899365289,
 "end_elevation_m": 565.9866785869107,
 "endpoint_gain_m": 41.84308865038179,
 "overall_gradient_pct": 10.91083426840004,
 "accumulated_ascent_m": 43.03954505068782,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.09847556191835,
   "start_distance_m": 188.0,
   "end_distance_m": 193.0,
   "midpoint_distance_m": 190.5,
   "start_elevation_m": 549.5946217417302,
   "end_elevation_m": 550.7995455198261,
   "start_xy": [
    2558617.277597422,
    1145227.8777817772
   ],
   "end_xy": [
    2558617.8958997717,
    1145232.8366937444
   ]
  },
  "max_10m": {
   "gradient_pct": 22.332609640524197,
   "start_distance_m": 183.0,
   "end_distance_m": 193.0,
   "midpoint_distance_m": 188.0,
   "start_elevation_m": 548.5662845557737,
   "end_elevation_m": 550.7995455198261,
   "start_xy": [
    2558617.2869843943,
    1145222.8777905887
   ],
   "end_xy": [
    2558617.8958997717,
    1145232.8366937444
   ]
  },
  "max_20m": {
   "gradient_pct": 21.827415822569947,
   "start_distance_m": 88.0,
   "end_distance_m": 108.0,
   "midpoint_distance_m": 98.0,
   "start_elevation_m": 528.427444494049,
   "end_elevation_m": 532.792927658563,
   "start_xy": [
    2558601.586063088,
    1145134.281133866
   ],
   "end_xy": [
    2558615.376588001,
    1145148.458252252
   ]
  },
  "max_25m": {
   "gradient_pct": 21.689683827612498,
   "start_distance_m": 168.0,
   "end_distance_m": 193.0,
   "midpoint_distance_m": 180.5,
   "start_elevation_m": 545.377124562923,
   "end_elevation_m": 550.7995455198261,
   "start_xy": [
    2558617.4769688128,
    1145207.879744108
   ],
   "end_xy": [
    2558617.8958997717,
    1145232.8366937444
   ]
  },
  "max_50m": {
   "gradient_pct": 21.460129570039044,
   "start_distance_m": 143.0,
   "end_distance_m": 193.0,
   "midpoint_distance_m": 168.0,
   "start_elevation_m": 540.0694807348066,
   "end_elevation_m": 550.7995455198261,
   "start_xy": [
    2558618.0253898087,
    1145182.8857601439
   ],
   "end_xy": [
    2558617.8958997717,
    1145232.8366937444
   ]
  },
  "max_100m": {
   "gradient_pct": 21.241036765245212,
   "start_distance_m": 93.0,
   "end_distance_m": 193.0,
   "midpoint_distance_m": 143.0,
   "start_elevation_m": 529.5585087545809,
   "end_elevation_m": 550.7995455198261,
   "start_xy": [
    2558605.4582690042,
    1145137.4216369996
   ],
   "end_xy": [
    2558617.8958997717,
    1145232.8366937444
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.109586403924368,
   "start_distance_m": 31.0,
   "end_distance_m": 36.0,
   "midpoint_distance_m": 33.5,
   "start_elevation_m": 523.5104044302154,
   "end_elevation_m": 523.3049251100192,
   "start_xy": [
    2558548.028703181,
    1145130.0604692218
   ],
   "end_xy": [
    2558552.883571439,
    1145128.8645368656
   ]
  },
  "min_10m": {
   "gradient_pct": -3.587559633916726,
   "start_distance_m": 29.0,
   "end_distance_m": 39.0,
   "midpoint_distance_m": 34.0,
   "start_elevation_m": 523.5779458394148,
   "end_elevation_m": 523.2191898760232,
   "start_xy": [
    2558546.086755878,
    1145130.5388421642
   ],
   "end_xy": [
    2558555.8140019733,
    1145128.2223596594
   ]
  },
  "min_20m": {
   "gradient_pct": -3.2945018886113075,
   "start_distance_m": 19.0,
   "end_distance_m": 39.0,
   "midpoint_distance_m": 29.0,
   "start_elevation_m": 523.8780902537454,
   "end_elevation_m": 523.2191898760232,
   "start_xy": [
    2558536.3770193625,
    1145132.9307068763
   ],
   "end_xy": [
    2558555.8140019733,
    1145128.2223596594
   ]
  },
  "min_25m": {
   "gradient_pct": -3.2028442625069147,
   "start_distance_m": 15.0,
   "end_distance_m": 40.0,
   "midpoint_distance_m": 27.5,
   "start_elevation_m": 523.9972395985061,
   "end_elevation_m": 523.1965285328794,
   "start_xy": [
    2558532.4931247565,
    1145133.8874527612
   ],
   "end_xy": [
    2558556.79099275,
    1145128.009078102
   ]
  },
  "min_50m": {
   "gradient_pct": -1.7035976532524728,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 524.1435899365289,
   "end_elevation_m": 523.2917911099026,
   "start_xy": [
    2558517.919,
    1145137.433
   ],
   "end_xy": [
    2558566.5609005145,
    1145125.8762625284
   ]
  },
  "min_100m": {
   "gradient_pct": 6.53690142417463,
   "start_distance_m": 283.0,
   "end_distance_m": 383.0,
   "midpoint_distance_m": 333.0,
   "start_elevation_m": 559.4723182559471,
   "end_elevation_m": 566.0092196801218,
   "start_xy": [
    2558646.0689133788,
    1145316.5725879925
   ],
   "end_xy": [
    2558579.760840718,
    1145318.3075368577
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.963613621467175,
   "start_distance_m": 191.0,
   "end_distance_m": 193.0,
   "midpoint_distance_m": 192.0,
   "start_elevation_m": 550.2602732473968,
   "end_elevation_m": 550.7995455198261,
   "start_xy": [
    2558617.6315133157,
    1145230.8542458126
   ],
   "end_xy": [
    2558617.8958997717,
    1145232.8366937444
   ]
  },
  "max_3m": {
   "gradient_pct": 24.90151792474838,
   "start_distance_m": 190.0,
   "end_distance_m": 193.0,
   "midpoint_distance_m": 191.5,
   "start_elevation_m": 550.0524999820836,
   "end_elevation_m": 550.7995455198261,
   "start_xy": [
    2558617.4993200875,
    1145229.8630218469
   ],
   "end_xy": [
    2558617.8958997717,
    1145232.8366937444
   ]
  }
 },
 "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.",
 "quality_summary": {
  "review": [],
  "extent": []
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "sample_interval_m": 1.0,
  "interpolation": "bilinear",
  "smoothing": "none",
  "gradient_windows_m": [
   5.0,
   10.0,
   20.0,
   25.0,
   50.0,
   100.0
  ],
  "diagnostic_windows_m": [
   2.0,
   3.0
  ],
  "elevation_crs": "EPSG:2056",
  "elevation_resolution_m": 0.5,
  "elevation_tiles": [
   "data/cache/ch/swissalti3d_2021_2558-1145_0.5_2056_5728.tif"
  ],
  "calculated_at": "2026-09-10T19:59:21+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/switzerland-2026-09-10-batch.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ch-run6-260910",
  "elevation_provider": "swisstopo swissALTI3D",
  "elevation_licence": "swisstopo open government data (OGD): free use, attribution '\u00a9 swisstopo' \u2014 https://www.swisstopo.admin.ch/en/terms-and-conditions",
  "elevation_dataset": "swissALTI3D 0.5 m DTM (Federal Office of Topography swisstopo)",
  "elevation_tile_ids": [
   "2558-1145"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Montreux",
  "county": "Vaud",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}